JP2850361B2 - System definition information management device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Summary] Regarding the management of system-defined parameters, which are various definition values that define the configuration of a computer system, the need for program changes is minimized for configuration changes such as the addition of parameter operands. The purpose of the present invention is to provide a system definition information management device capable of easily coping with a limited range of data, and in a computer, for each parameter of the system definition, an operand extracted from the parameter and an array of the operand are defined for each required program. When the parameter is requested from the program, the structure definition data of the designated parameter is searched for the definition information provided for the program, and the search is performed. According to the defined contents, the operands extracted from the parameters are arranged, and the Configure to pass.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to management of system definition parameters, which are various definition values that define the configuration of a computer system, and more particularly to a system definition information management device for coping with parameter changes.

As is known, an operating system of a computer holds various parameters such as information defining the configuration of the computer and constants necessary for various system controls as a system definition, and passes required parameters to a required program upon request. .

[Conventional technology]

FIG. 4 is a block diagram showing an example of the configuration of a conventional system definition information management device.
.. Are stored in the system definition file 1 and are managed by the system definition management unit 2, and read out from the system definition file 1 the operands of the parameters specified by the programs 3a, 3b,. Are arranged in a predetermined configuration and passed to the requesting programs 3a, 3b and the like.

Each parameter is generally composed of a plurality of operands, as shown in FIG.
It is a character string indicating address, capacity, and the like, and numerical data.

Each of the programs 3a, 3b, etc., receiving those parameters is assumed to be passed from the system fixing management unit 2 in a fixed data configuration format defined for each of the parameters 5i, 5j, etc. Created to access operands.

The system definition management unit 2 is provided with parameter correspondence units 4i, 4j, etc. for processing the parameters 5i, 5j, etc., individually for each parameter. For example, the parameter correspondence units 4i, 4j, etc. correspond according to parameter names requested from the programs 3a, 3b, etc. The parameter-corresponding part is called, and it is read from the system definition file based on the data type and data length of each operand for each parameter in charge and the required arrangement of the operands, and is converted into a predetermined format. Perform the configuration process.

[Problems to be solved by the invention]

With the above configuration, for example, when the program 3a shown in FIG. 4 is required and parameters are added as shown in FIG. 5A and operands are added as shown in FIG. Naturally, it is necessary to change the data of the parameter 1 and the program 3a that uses the parameter, and the parameter corresponding unit 4i of the system definition management unit 2 that processes the parameter also needs to be modified according to the change of the parameter configuration. Is required.

Furthermore, other than the program 3a, for all other programs such as the program 3b that may refer to this parameter, it is necessary to change the processing, for example, to skip the operand, and the change is wide-ranging and thus changed. There is a problem that errors such as leakage are likely to occur.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a system definition information management apparatus which can easily cope with a configuration change such as an addition of a parameter operand by limiting a program change to a minimum range.

[Means for solving the problem]

 FIG. 1 is a block diagram showing the configuration of the present invention.

The figure shows the configuration of the system definition information management device. In the computer, each parameter 5i,
For each 5j, etc., structure definition data 10i, 10j,... Having information for defining an operand to be extracted from a parameter and an array of the operand for each required program 3a, 3b, etc., are provided, and the structure definition data is stored. A structure definition data storage unit for storing structure definition data. System definition management unit
11, when the parameter is requested from the program 3a or the like, the parameter processing unit 12 searches the definition information provided for the program from the structure definition data 10i, 10j or the like of the designated parameter, and the searched definition content According to the above, the operands extracted from the parameters are arrayed and passed to the requesting programs 3a, 3b and the like.

(Operation)

With the above system definition information management device, the necessary parameter configuration is defined for each program by the structure definition data. Therefore, the effect of a change such as an increase or decrease of operands in the system definition parameter is affected by the data of the parameter and the parameter. The program is limited to the program that needs to be changed and the definition information of the program in the structure definition data.

〔Example〕

FIG. 3 is a diagram showing a detailed configuration example of structure definition data for one parameter of system definition. As shown in the figure, the structure definition data 10 includes a parameter definition block 20 serving as a route for each parameter, and parameter control blocks 21a and 21b for each program linked by a pointer therefrom.
……have.

The parameter definition block 20 includes, for example, parameter names and other control information items relating to the entire parameter, pointers to one of the parameter control blocks 21a and 21b, and pointers to the operand definition block 22-1. Terms.

Each of the operand definition blocks 22-1, 22-2,... Corresponds to each operand of this parameter, for example, each item of the data type, size and other attributes of the operand, and the data of the operand of parameter 5 And a pointer term for linking the operand definition block.

The parameter control blocks 21a, 21b, etc. provided for each required program include, for example, a program name indicating the corresponding program, a pointer for linking the parameter control block, the number of operands, etc., and operand control blocks 23a, 23b, etc. Has a pointer term.

Each of the operand control blocks 23a, 23b, etc. includes, for example, a pointer for a link and an operand definition block 22-.
1 and 22-2, and the like, and by linking one or more operand control blocks 23a, 23b, etc. from the parameter control blocks 21a, 21b, etc., as shown in FIG. The sequence order can be defined for each program.

When the system definition management unit 11 receives a request for system definitions such as the programs 3a and 3b shown in FIG.
12 starts and executes, for example, the processing flow shown in FIG. That is, when the parameter definition block 20 of the designated parameter name is searched from the system definition file 13 in the processing step 30, the parameter control blocks 21a, 21b, etc. indicated by the pointer are searched by the requesting program name in the processing step 31, and one Determine the parameter control block.

Based on the retrieved information on the parameter control blocks 21a, 21b, etc., in a processing step 32, the operand control blocks 23a, 23b, etc. linked to the parameter control blocks are sequentially read out, and the operand definition block 22-1 indicated by the pointer is read out. , 22-2, etc., are fetched from the parameter 5 and arranged until the processing step 33 detects that the required number of operands have been processed, thereby assembling the required parameters, In processing step 34, the parameters are passed to the requesting program, and the processing is terminated.

As described above, since the system definition management unit 11 performs processing related to the attributes and arrangement of operands of parameters with reference to the structure definition data 10, it is necessary to change the system definition management unit 11 for parameter changes. The change can be handled by changing the structure definition data 10, and by providing the structure definition data 10 with the corresponding definition information for each requesting program, the program that does not need to be changed when changing parameters is the same as before the change. By providing the parameters, it is possible to eliminate the influence of the parameter change.

〔The invention's effect〕

As is apparent from the above description, according to the present invention, in the management of the system-defined parameters in the computer, the change of the program is limited to the minimum range for the configuration change such as the addition of the operand of the parameter. It has a remarkable industrial effect of improving the usability of the computer since it can be easily handled.

[Brief description of the drawings]

 FIG. 1 is a block diagram showing a configuration of the present invention, FIG. 2 is a flowchart of a process of the present invention, FIG. 3 is an explanatory diagram of structure definition data, FIG. 4 is a block diagram showing a conventional configuration example, FIG. The figure is an explanatory diagram of system definition parameters. In the figure, 1 and 13 are system definition files, 2 and 11 are system definition management units, 3a and 3b are programs, 4i and 4j are parameter corresponding units, 5, 5i and 5j are parameters, and 10, 10i and 10j are structure definitions. Data, 20 is a parameter definition block, 21a and 21b are parameter control blocks, 22-1 to 22-5 are operand definition blocks, 23a and 23b are operand control blocks, and 30 to 34 are processing steps.

Claims (1)

(57) [Claims] 1. A system definition management device that manages various definition values that define the configuration of a computer system, wherein the structure defines a definition value required by the program corresponding to a program that operates on the computer system. A structure definition data storage unit for storing definition data; and, in response to a request from the program, reading out structure definition data corresponding to the requesting program from the structure definition data storage unit, and defining a definition value based on the structure definition data. A system definition information management device consisting of a system definition management unit that collects and notifies the requesting program.